EP 0983838 A2 20000308 - Method for preparation of colored contact lens with a dazzling appearance
Title (en)
Method for preparation of colored contact lens with a dazzling appearance
Title (de)
Verfahren zur Herstellung von gefärbten Kontakt-Linsen mit einem blendenden Erscheinungsbild
Title (fr)
Procédé pour la fabrication de lentilles de contact colorés avec un aspect éblouissant
Publication
Application
Priority
US 14565398 A 19980902
Abstract (en)
A method for preparation of colored contact lens with a dazzling appearance is disclosed. Pigments are first printed to a convex surface of a plastic mold. Material for the lens is then dropped onto the concave surface of the plastic mold. The mold then spins in a determined speed for a determined period of time, such that a desired radius surface is formed. During the spinning, the pigments are distributed inside the lens material due to the centrifugal force so generated, at positions determined generally by the diameters of the particles, such that a dazzling appearance may be obtained. This invention also discloses the contact lens prepared according to the method of this invention.
IPC 1-7
IPC 8 full level
B29D 11/00 (2006.01); D06P 1/44 (2006.01)
CPC (source: EP)
B29D 11/00038 (2013.01); B29D 11/00317 (2013.01); B29D 11/00471 (2013.01); B29D 11/00894 (2013.01); D06P 1/44 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0983838 A2 20000308; EP 0983838 A3 20020102; EP 0983838 B1 20051228; CN 1120994 C 20030910; CN 1252530 A 20000510; DE 69929125 D1 20060202; DE 69929125 T2 20060831
DOCDB simple family (application)
EP 99108336 A 19990428; CN 99108347 A 19990609; DE 69929125 T 19990428